Identification & Specifications: Notes
Alternator is color-ink stamped with "FoMoCo", "Autolite", or "Motorcraft" trademarks. Color stamp is code for rated amperage and rated output. Rated amperage is also stamped on end frame (38A, 55A, etc.). Color code is as follows:
| Application | Amperage @ 15V. | Rated Output Speed (Engine RPM) | ||
|---|---|---|---|---|
| Purple | 38 | 2900 | ||
| Orange | 42 | 2900 | ||
| Black | 45 | 2900 | ||
| Red | 55 | 2900 | ||
| Green | 60/61 | 2900 | ||
| Black | 65 | (1) 1640 | ||
| No Color code | 70 | 5000 | ||
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SERVICE CAUTION - When testing or servicing alternator or regulator, take following precautions to avoid damage to components: